# SRI — MCP Server Inspector

Read what an MCP server actually does before you connect to it. Findings are quoted at file:line from the published source. SRI never returns a "safe" verdict; it returns only observed facts. The absence of findings is not a clearance.

Corpus: 5427 MCP servers read at source level.

## Endpoints
- MCP (streamable HTTP): POST /mcp — tool `check_mcp_server`, free
- REST: POST /v1/verify {ecosystem:'mcp', name, version} — free
- Coverage index: GET /v1/corpus — free
- OpenAPI: GET /openapi.json
- x402 (USDC on Base): POST /v1/x402/verify — paid, $0.20 per lookup, discovery via /.well-known/x402

No key, no signup. Docs: https://sri-test.biz/